Home / 134,845.11-186,098.18-74,428.83

Finding the Fourth Proportional to 134,845.11, 186,098.18 and 74,428.83

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Solution

The fourth proportional to 134,845.11, 186,098.18 and 74,428.83 is: 102,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,845.11 : 186,098.18 = 74,428.83 : x
  2. Step 2: Convert to fraction form
    134,845.11/186,098.18 = 74,428.83/x
  3. Step 3: Cross multiply
    134,845.11x = 186,098.18 × 74,428.83
  4. Step 4: Simplify right side
    134,845.11x = 13,851,069,430.39
  5. Step 5: Solve for x
    x = 13,851,069,430.39/134,845.11
  6. Step 6: Final answer
    x = 102,718.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.